| subsampling-package | Optimal Subsampling Methods for Statistical Models | 
| ssp.glm | Optimal Subsampling Methods for Generalized Linear Models | 
| ssp.quantreg | Optimal Subsampling Methods for Quantile Regression Model | 
| ssp.relogit | Optimal Subsampling for Logistic Regression Model with Rare Events Data | 
| ssp.softmax | Optimal Subsampling Method for Softmax (multinomial logistic) Regression Model | 
| subsampling | Optimal Subsampling Methods for Statistical Models |